Source: org/terraswarm/accessor/accessors/web/test/TestDerivedAgainA.js

// Copyright (c) 2016-2016 The Regents of the University of California.
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/** Doubly derived accessor that overrides a function (inputHandler) of the base
 *  two levels up, it should produce an output value of 2 on both outputs.
 *
 *  @accessor test/TestDerivedAgainA
 *  @author Edward A. Lee
 *  @version $$Id$$
 */

// Stop extra messages from jslint.  Note that there should be no
// space between the / and the * and global.
/*globals console, error, exports, require */
/*jshint globalstrict: true*/
"use strict";

exports.setup = function () {
    this.extend('test/TestDerivedC');
    this.output('out2');
};

// Override input Handler of base.
// Access a field defined in TestBaseC and overridden in TestDerivedC.
exports.inputHandler = function () {
    // Invoke the base class inputHandler, defined two levels up.
    // Have to call it with 'this' bound to this accessor, otherwise,
    // 'this' will be the superclass exports property.
    this.exports.ssuper.inputHandler.call(this);
    this.send('out2', this.exports.baseField);
};